EP2330863B1 - Système de communication radio et procédé de communication radio - Google Patents

Système de communication radio et procédé de communication radio Download PDF

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Publication number
EP2330863B1
EP2330863B1 EP10193461.0A EP10193461A EP2330863B1 EP 2330863 B1 EP2330863 B1 EP 2330863B1 EP 10193461 A EP10193461 A EP 10193461A EP 2330863 B1 EP2330863 B1 EP 2330863B1
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EP
European Patent Office
Prior art keywords
radio communication
radio
base station
mode
communication terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10193461.0A
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German (de)
English (en)
Other versions
EP2330863A3 (fr
EP2330863A2 (fr
Inventor
Hiromasa Fujii
Jiyun Shen
Tomoyuki Ohya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
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NTT Docomo Inc
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Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of EP2330863A2 publication Critical patent/EP2330863A2/fr
Publication of EP2330863A3 publication Critical patent/EP2330863A3/fr
Application granted granted Critical
Publication of EP2330863B1 publication Critical patent/EP2330863B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15592—Adapting at the relay station communication parameters for supporting cooperative relaying, i.e. transmission of the same data via direct - and relayed path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0097—Relays

Claims (10)

  1. Système de radiocommunication comprenant une station de base radio (10) pour communiquer avec au moins terminal de radiocommunication et un appareil relais (20) figurant dans une cellule formée par la station de base radio (10), où
    la station de base radio (10) comprends :
    une unité d'acquisition (108) configurée pour obtenir de chaque terminal de radiocommunication une information de puissance de réception d'un premier signal de contrôle reçu en provenance de la station de base radio (10) par le terminal de radiocommunication respectif (30) et une information de puissance de réception d'un deuxième signal de contrôle reçu en provenance de l'appareil relais (20) par le terminal de radiocommunication respectif ; et caractérisé en ce que
    la station de base radio comporte en outre
    une unité de détermination d'un mode de communication (109) configurée pour déterminer, sur la base de l'information de puissance de réception obtenue du terminal de radiocommunication respectif (30), un mode de communication pour chaque terminal de radiocommunication (30) parmi un mode direct pour communiquer sans passer par l'appareil relais (20), un mode relais pour communiquer via l'appareil relais (20) en utilisant un faisceau directionnel transmis entre la station de base radio (10) et l'appareil relais (20), et un mode combiné pour communiquer en combinant le mode direct et le mode relais, et
    une unité de communication (113) configurée pour communiquer avec chaque terminal de radiocommunication en utilisant le mode de communication déterminé pour le terminal de radiocommunication respectif, et
    l'appareil relais (20) est de type amplification et acheminement (Amplify and Forward - AF) et comprends une unité de contrôle de relais (206) configurée pour contrôler, selon que le signal reçu comprends une information d'identification de l'appareil relais (20), si un signal reçu en provenance de la station de base radio (10) doit être relayé ou non, où
    un signal de données transmis à partir de la station de base radio (10) vers un terminal de radiocommunication (30) pour lequel le mode relais est déterminé par l'unité de détermination d'un mode de communication (109) comprends l'information d'identification de l'appareil relais (20) tandis qu'un signal de données transmis à partir de la station de base radio (10) vers un terminal de radiocommunication (30) pour lequel le mode direct est déterminé par l'unité de détermination d'un mode de communication ne comprends pas l'information d'identification de l'appareil relais (20).
  2. Système de radiocommunication selon la revendication 1, où le mode combiné comprends un mode d'augmentation de capacité pour communiquer avec un terminal de radiocommunication (30) par le mode direct tout en communiquant avec un autre terminal de radiocommunication (30) par le mode relais en utilisant la même ressource radio.
  3. Système de radiocommunication selon la revendication 1, où le mode combiné comprends un mode d'extension de zone pour communiquer avec un terminal de radiocommunication (30) en mode direct et en mode relais en utilisant la même ressource radio.
  4. Système de radiocommunication selon la revendication 1, où la station radio de base comprends en outre une unité d'allocation configurée pour allouer une ressource radio à chaque terminal de radiocommunication (30) en fonction du mode de communication déterminé pour le terminal de radiocommunication respectif (30).
  5. Système de radiocommunication selon la revendication 4, où, lorsque l'unité de communication (113) est configurée pour communiquer en mode relais via différents appareils relais (20) avec une pluralité de terminaux de radiocommunication (30), l'unité d'allocation (110) est configurée pour allouer la même ressource radio à au moins un terminal de radiocommunication (30) sélectionné parmi la pluralité de terminaux de radiocommunication (30) de sorte que la qualité de communication de chacun de la pluralité de terminaux de radiocommunication (30) correspond à une valeur prédéterminée.
  6. Système de radiocommunication selon la revendication 4, où l'unité d'allocation (110) est configurée pour coordonner des modes de communication de terminaux de radiocommunication (30) auxquels la même ressource radio est allouée entre la station de base radio (10-1) et une station de base radio adjacente (10-2).
  7. Système de radiocommunication selon la revendication 1, où l'unité de communication (113) est configurée pour communiquer avec un terminal de radiocommunication (30) communiquant en mode relais via une pluralité d'appareils relais (20).
  8. Système de radiocommunication selon la revendication 1, où l'unité de communication (113) est configurée pour communiquer avec un terminal de radiocommunication (30) communiquant en mode relais via un appareil relais (20) transmettant et recevant le même signal que celui de la station de base radio (10-1) vers/provenant d'une autre station de base radio (10-2)
  9. Système de radiocommunication selon l'une quelconque des revendications 1 à 8, où l'appareil relais (20) comprend en outre :
    une unité de détermination d'un signal à interférence de boucle (210) configuré pour déterminer si une puissance de réception d'un signal à interférence de boucle dans le signal reçu correspond à une valeur prédéterminée ou plus ; et
    une unité de conversion de fréquence (211) configuré pour convertir une fréquence du signal reçu en une autre fréquence lorsque la puissance de réception du signal à interférence de boucle dans le signal reçu correspond à la valeur prédéterminée ou plus.
  10. Méthode de radiocommunication dans un système de radiocommunication comprenant une station de base radio (10) et au moins un appareil relais (20) ayant une information d'identification assignée prévus dans une cellule formée par la station de base radio (10) pour communiquer avec au moins un terminal de radiocommunication, comprenant :
    l'acquisition, dans la station de base radio (10), à partir de chaque terminal de radiocommunication (30), d'une information de puissance de réception d'un premier signal de contrôle reçu en provenance de la station de base radio (10) par le terminal de radiocommunication respectif (30) et une information de puissance de réception d'un deuxième signal de contrôle reçu en provenance de l'appareil relais (20) par le terminal de radiocommunication respectif (30) ; caractérisée par
    la détermination, dans la station de base radio (10), sur la base de l'information de puissance de réception obtenue du terminal de radiocommunication respectif (30), d'un mode de communication pour chaque terminal de radiocommunication (30) parmi un mode direct pour communiquer sans passer par l'appareil relais (20), un mode relais pour communiquer via l'appareil relais (20) en utilisant un faisceau directionnel transmis entre la station de base radio (10) et l'appareil relais (20), et un mode combiné pour communiquer en combinant le mode direct et le mode relais ;
    la communication, dans la station de base radio (10), avec chaque terminal de radiocommunication (30) en utilisant le mode de communication déterminé pour le terminal de radiocommunication (30) respectif ; et
    le contrôle, dans l'appareil relais (20) de type amplification et acheminement (AF), si un signal reçu en provenance de la station de base radio (10) doit être relayé ou non selon que le signal reçu comprends une information d'identification de l'appareil relais (20) ; où
    un signal de données transmis à partir de la station de base radio (10) vers un terminal de radiocommunication (30), pour lequel le mode relais est déterminé par l'unité de détermination d'un mode de communication (109), comprends l'information d'identification de l'appareil relais (20), tandis qu'un signal de données transmis à partir de la station de base radio (10) vers un terminal de radiocommunication (30) pour lequel le mode direct est déterminé par l'unité de détermination d'un mode de communication ne comprends pas l'information d'identification de l'appareil relais (20).
EP10193461.0A 2009-12-03 2010-12-02 Système de communication radio et procédé de communication radio Not-in-force EP2330863B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009275760A JP4990343B2 (ja) 2009-12-03 2009-12-03 無線通信システム及び無線通信方法

Publications (3)

Publication Number Publication Date
EP2330863A2 EP2330863A2 (fr) 2011-06-08
EP2330863A3 EP2330863A3 (fr) 2012-06-13
EP2330863B1 true EP2330863B1 (fr) 2013-07-10

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Family Applications (1)

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EP10193461.0A Not-in-force EP2330863B1 (fr) 2009-12-03 2010-12-02 Système de communication radio et procédé de communication radio

Country Status (4)

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US (1) US20110136525A1 (fr)
EP (1) EP2330863B1 (fr)
JP (1) JP4990343B2 (fr)
CN (1) CN102088710A (fr)

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Also Published As

Publication number Publication date
JP2011120015A (ja) 2011-06-16
EP2330863A3 (fr) 2012-06-13
JP4990343B2 (ja) 2012-08-01
US20110136525A1 (en) 2011-06-09
EP2330863A2 (fr) 2011-06-08
CN102088710A (zh) 2011-06-08

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